Steam-boiler feeder.



No. 664,696., 3 Patented Dec. 25, 19am,

6. w. VIDLUND.

STEAM BUILEB FEEDER.

(Application filed June 8, 1900.) (No Model.)

UNITED STATES PATENT OFFICE.

GUSTAVE W. VlDLIIND, OF PHILADELPHIA, PENNSYLVANIA.

STEAM-BOILER FEEDER.

SPECIFICATION forming part of Letters Patent No. 664,696, dated December 25, 1900.

Application filed June 8,1900. b'erial No. 19,556. (No model.)

To all whmn it may concern:

Be it known that I, GUsrAvE W. VIDLUND, a citizen of the United States, residingin the cityand county of Philadelphia,State ofPennsylvania, have invented a new and useful Improvement in Steam-Boiler Feeders, which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of a novel construction in a steam-boiler feeder that is adapted to maintain the water in the boiler at the normal water-line, the apparatus being controlled automatically by the variations in the height of the water in said boiler.

Figure 1 represents a side elevation, partially in vertical section, of a steam-boiler feeder embodying my invention. Fig. 2 represents a fragmentary horizontal section on line a: :0, Fig. 1.

Similar letters of reference indicate correspending parts in the figures.

Referring to the drawings, A designates the steam-boiler, that communicates by means of a feed-pipe B with the reservoir 0, from which it is supplied, a steam-pump D being employed to pump water from the reservoir C to said boiler. The steam-pump is connected by means of a pipe E with the steam-dome of the boiler, being controlled by a valve F. This valve F is adapted to beopened and closed by means that are actuated by the variations in the height of water in the boiler A, it being noted that when the height of water in the boiler falls slightly below normal the mechanism controlling this valve is operated, so that the valve is slightly open to allow the passage of enough steam to operate the steam-pump to supply enough water to the boiler to bring the height to normal. However, if the water falls considerably below the normal the valve F is open entirely to cause the steam-pump to Work at its full capacity. When the normal supply of water is reached, the valve is again closed.

The valve-controlling mechanism comprises a cup G, hanging freely within a chamber H upon a lever J. Exterior to the chamber H said lever J is provided with an adjustable weight K and is connected by means of a rod L with a bell-crank lever M, having an adjustable weight N. The bell-crank lever H is mounted upon the bracket P and is connected with the toggle-lever Q, that is connected with said bracket and with the stem of the valve F. The operation of said parts is obvious.

The chamber H, containing the cup G, communicates at its end, with a water-column exterior to the boiler A. The said water-column is formed by an upright pipe R, that is connected at its ends with the upper and lower ends of the boiler and is provided with the cylinder or chamber S, having a gageglass T. The pipe U, leading from the upper end of the chamber H, communicates with the cylinder S just below the water-line of the boiler, so that when the water is at the normal height in the boiler the end of this pipe U is closed. The pipe V, leading from the bottom of the chamber H, communicates with the lower end portion of the pipe R.

The operation is as follows: For the purpose of illustration the water is considered at normal height in the boiler, as illustrated in Fig. 1, and the lower end of the pipe U is therefore closed and the chamber H and pipe V filled with water. In this case the weights K and N overcome the weight of the water in the cup G and close the valve F. If the level of the water within the boiler falls below the lower end of the pipe U, steam from the upper end of the pipe R and cylinder S enters the pipe U and causes the water in said pipe, the chamber H, and pipe D to descend until it is at the same level as in the boiler and cylinder S. The cup G within the chamber H being full of water and said chamber H being empty, the weight of said cup will overcome the weights K and N and, lifting the outer end of the bell-crank lever M, will open the valve F. This allows steam to pass to the steam-pump and operate the same until the I claim as new, and desire to secure by Letters Patent, is

1; In a steam-boiler feeder, a steam-pump connected with the feed-pipe of the boiler and having a valve-controlled connection with the steam-space of the boiler, a pipe connected trolled connection between said pump and the steam-space of the boiler, a water-column pipe connected with said 'boiler above and below its normal water-line, a chamber having its upper end connected with said water-column pipe just below the normal water-line and its lower end connected therewith below the point of connection of said upper end, and a cup suspended within said chamber from a movable part that is connected with the valve controlling the steam-supply of said pump.

3. In a steam-boiler feeder, a steam-pump connected with the feed-pipe of the boiler and having a valve-controlled connection with the steam-space of the boiler, a water-colu mn pipe having a cylinder at about the water-line of the boiler, a chamber having its upper end communicating with said cylinder just below the water-line of the boiler, a pipe leading from the lower end of said cylinder and communicating with said water-column pipe be- 1 low the point of connection of the other pipe f 40.

therewith, a cup open at its upper end situated within said chamberand suspended upon a weighted lever connected with a valve controlling the steam-su pply of said pump.

GUSTAVE W. VIDLUND.

Witnesses:

DANIEL M. BORING, FRANZ G. B. FALK. 

